Search Results for author: Sarvnaz Karimi

Found 24 papers, 3 papers with code

Combining Shallow and Deep Representations for Text-Pair Classification

no code implementations ALTA 2021 Vincent Nguyen, Sarvnaz Karimi, Zhenchang Xing

Contemporary methods use fine-tuned transformer encoder semantic representations of the classification token in the text-pair sequence from the transformer’s final layer for class prediction.

Classification Paraphrase Identification +1

Pandemic Literature Search: Finding Information on COVID-19

no code implementations ALTA 2020 Vincent Nguyen, Maciek Rybinski, Sarvnaz Karimi, Zhenchang Xing

Finding information related to a pandemic of a novel disease raises new challenges for information seeking and retrieval, as the new information becomes available gradually.

Information Retrieval Retrieval

Identifying Health Risks from Family History: A Survey of Natural Language Processing Techniques

no code implementations15 Mar 2024 Xiang Dai, Sarvnaz Karimi, Nathan O'Callaghan

In addition to the areas where NLP has successfully been utilised, we also identify the areas where more research is needed to unlock the value of patients' records regarding data collection, task formulation and downstream applications.

Detecting Entities in the Astrophysics Literature: A Comparison of Word-based and Span-based Entity Recognition Methods

no code implementations24 Nov 2022 Xiang Dai, Sarvnaz Karimi

Information Extraction from scientific literature can be challenging due to the highly specialised nature of such text.

Searching Scientific Literature for Answers on COVID-19 Questions

no code implementations6 Jul 2020 Vincent Nguyen, Maciek Rybinski, Sarvnaz Karimi, Zhenchang Xing

Finding answers related to a pandemic of a novel disease raises new challenges for information seeking and retrieval, as the new information becomes available gradually.

Retrieval

An Effective Transition-based Model for Discontinuous NER

1 code implementation ACL 2020 Xiang Dai, Sarvnaz Karimi, Ben Hachey, Cecile Paris

Unlike widely used Named Entity Recognition (NER) data sets in generic domains, biomedical NER data sets often contain mentions consisting of discontinuous spans.

named-entity-recognition Named Entity Recognition +1

ANU-CSIRO at MEDIQA 2019: Question Answering Using Deep Contextual Knowledge

no code implementations WS 2019 Vincent Nguyen, Sarvnaz Karimi, Zhenchang Xing

We report on our system for textual inference and question entailment in the medical domain for the ACL BioNLP 2019 Shared Task, MEDIQA.

Natural Language Inference Question Answering

Figurative Usage Detection of Symptom Words to Improve Personal Health Mention Detection

no code implementations ACL 2019 Adith Iyer, Aditya Joshi, Sarvnaz Karimi, Ross Sparks, Cecile Paris

The introduction of figurative usage detection results in an average improvement of 2. 21% F-score of personal health mention detection, in the case of the feature augmentation-based approach.

Sentence

Using Similarity Measures to Select Pretraining Data for NER

1 code implementation NAACL 2019 Xiang Dai, Sarvnaz Karimi, Ben Hachey, Cecile Paris

Word vectors and Language Models (LMs) pretrained on a large amount of unlabelled data can dramatically improve various Natural Language Processing (NLP) tasks.

named-entity-recognition Named Entity Recognition

Red-faced ROUGE: Examining the Suitability of ROUGE for Opinion Summary Evaluation

no code implementations ALTA 2019 Wenyi Tay, Aditya Joshi, Xiuzhen Zhang, Sarvnaz Karimi, Stephen Wan

Opinion summarisation requires to correctly pair two types of semantic information: (1) aspect or opinion target; and (2) polarity of candidate and reference summaries.

Does Multi-Task Learning Always Help?: An Evaluation on Health Informatics

no code implementations ALTA 2019 Aditya Joshi, Sarvnaz Karimi, Ross Sparks, Cecile Paris, C Raina MacIntyre

Multi-Task Learning (MTL) has been an attractive approach to deal with limited labeled datasets or leverage related tasks, for a variety of NLP problems.

Classification General Classification +1

Survey of Text-based Epidemic Intelligence: A Computational Linguistic Perspective

no code implementations14 Mar 2019 Aditya Joshi, Sarvnaz Karimi, Ross Sparks, Cecile Paris, C Raina MacIntyre

Epidemic intelligence deals with the detection of disease outbreaks using formal (such as hospital records) and informal sources (such as user-generated text on the web) of information.

Event Detection General Classification

Concept Extraction to Identify Adverse Drug Reactions in Medical Forums: A Comparison of Algorithms

no code implementations27 Apr 2015 Alejandro Metke-Jimenez, Sarvnaz Karimi

Our evaluations were performed in a controlled setting on a common corpus which is a collection of medical forum posts annotated with concepts and linked to controlled vocabularies such as MedDRA and SNOMED CT. To our knowledge, our study is the first to systematically examine the effect of popular concept extraction methods in the area of signal detection for adverse reactions.

BIG-bench Machine Learning

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